Archive for the ‘stay cables’ Tag

LHV Engineering Expo: 15th Annual STEM Event

As the bridge project met and hit timeline markers, your intrepid reporter met one of her own: last Sunday I attended the Lower Hudson Valley Engineering Expo at White Plains High School. Yes, my then four-and-one-half week new hip and I.

The first photo includes a black strand sticking up from the cross-section of stay cable. The photo above shows the top of that section with wires bundled into it.

Everyone wanted to see how heavy the section of 18-gauge galvanized rebar was compared to the residential rebar. I wonder if anyone tried to pick up the section of cement.

There were oyster shells — I put two up to my ear and thought I heard a whoosh although not like the ocean — and furry friends like this fish to show the project was protecting life below the bridge.

Weather not withstanding as spring is hiding somewhere, the day of companies, experiments, college and universities, learning and contests was a success. It was reigning STEM. You’re smiling if you understand the reference, and please pardon the pun if you don’t.

Watch for story about kids’ fascination with —  and how they’re learning about — STEM topics and activities in the May issue of Westchester Family.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2018

TBT: Main Span Towers’ Topping Off Ceremony

It’s Throwback Thursday, and you know what that means: this time last year, media had an exclusive, first-time look at the new westbound span. I’ve said at earlier times and repeat, the project is colorful: the I Lift NY, bright blue structural steel girders, red and yellow cranes, blue jump forms, yellow guard rails.

Governor Cuomo braved freezing temps without gloves, hat or scarf during the topping ceremony for the new bridge’s eight main span towers.

Facing north: one of the new main span towers high above the Hudson River/© H. Jackson

I looked at the stay cables tensioned under the main span and the girders peeking out from under the Westchester approach, where we stood, and at the rebar along the northern side of what would eventually be the shared use path and at the jump forms atop the towers and at the road deck built east from the main span (built west, too, that we couldn’t see).

The photo to the right — one of the towers with stairs leading to the top — got me thinking about how nervous I was in high school gym class if the teacher asked us to stand on the balance beam or sit on the lower of two uneven parallel bars.

Last year was an experience, surpassed only by the opening ceremony this past August.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

E’bound Main Span Steel, all Stay Cables in Place

Earlier this week, crews set the last section of main span steel on the eastbound span. Photos courtesy of New York State Thruway Authority.

You want numbers? Here they are:

The section was 24 feet long, adding to the more than 74 million pounds of all-American-made steel and concrete across the 2,230-foot cable-stayed part of the bridge. In case you were wondering, all 192 stay cables are now installed.

One more month, and bye-bye Tappan Zee Bridge drive. Eastbound traffic joins westbound traffic on the newly-opened span so the TZB’s landings can be demolished, and the eastbound span can be connected . . . because car-jumping from approach span to land is prohibited.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

Bridge Progress and Four Years in Two Minutes

Blue jump forms will help build the main span’s 419-foot towers./Photo: NYSTA

Taking a look back two years ago when the main span towers were beginning. Here are the past four years in two minutes courtesy of the project team.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

You say One Month, & They say a Different One

Winding down to the finish line yet still behind schedule for the first span to open. Maybe no one really knows as there’s still much work to be done before rubber meets roadway on the new Governor Mario M. Cuomo Bridge.

Weather may be a factor in the delay; however, a nearly-six-month delay is a bit much. “If the Thruway Authority doesn’t have the keys to the new bridge by March or April of 2018, then the contractor will be charged $100,000 per day for each day beyond that,” one source said in 2014. That’s the 62-month mark.

With eight or nine months until next spring, it seems unlikely both spans will open by then. “The bridge will open sometime in 2018,” other reporters and I hear and continue writing. No one is sure when.

You may be able to see some of the new westbound span’s lighting fixtures; not so easy with the upper main span tower’s aesthetic lighting fixtures. Periodic testing is on the way.

There’s also progress at the new maintenance facility in Tarrytown this week and footing and retaining wall construction — that includes galvanized steel sheets — for the new police facility on the south side of the Thruway.

About three-quarters of the eastbound span’s 96 stay cables have been installed, and yes! the eastbound span now has one of its eventual eight overhead gantries.

Another reporter said, “The Tappan Zee Constructors, the group of contractors tasked with designing and building the bridge, also need to stripe the driving surface.”

The consortium is Tappan Zee Constructors not the Tappan Zee Constructors. Further, Tappan Zee Constructors needs not need to stripe the driving surface. No editing prior to publication?

First photo courtesy of New York State Thruway Authority.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2017

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